Patents Assigned to Eitel KG., Werkzeugmaschinenfabrik
  • Patent number: 3948076
    Abstract: Method and apparatus for automatically straightening elongated and at least partly rotationally symmetrical workpieces by applying a sequence of straightening strokes to a workpiece at each of a plurality of straightening stations to counteract a deformation until the measured instantaneous values of the deformation fall within a predetermined deformation tolerance. The depth of the straightening strokes is determined by the difference between the measured instantaneous values of the deformation and the mean of the maximum and minimum values of the deformation.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: April 6, 1976
    Assignee: Eitel KG., Werkzeugmaschinenfabrik
    Inventors: Hans-Georg Eitel, Waldemar Morlock, Dieter Ruf
  • Patent number: 3943746
    Abstract: Method and apparatus for automatically straightening elongated and at least partly rotationally symmetrical workpieces by applying a sequence of straightening strokes to a workpiece at one straightening station to counteract a deformation until the measured instantaneous values of the deformation fall within a predetermined deformation tolerance. The depth of the straightening strokes is determined by the difference between the measured instantaneous values of the deformation and the mean of the maximum and minimum values of the deformation.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: March 16, 1976
    Assignee: Eitel KG., Werkzeugmaschinenfabrik
    Inventors: Hans-Georg Eitel, Waldemar Morlock, Dieter Ruf